← Search
Sample 89L-178
NavDat sample number 45729 · DACITE
Sample
| Sample ID | 89L-178 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.96 |
|---|
| Longitude | -107.086 |
|---|
| Location | upper Rough Creek |
|---|
| State / province | COLORADO |
|---|
| Formation | Nelson Mountain Caldera cycle |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 25.7 |
|
25.2 |
26.2 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 65.59 | | WT% | XRF |
| TIO2 | 0.603632 | | WT% | XRF |
| AL2O3 | 15.7306 | | WT% | XRF |
| FE2O3 | 4.29364 | | WT% | XRF |
| MGO | 1.38195 | | WT% | XRF |
| CAO | 3.38716 | | WT% | XRF |
| NA2O | 4.22542 | | WT% | XRF |
| K2O | 3.39026 | | WT% | XRF |
| P2O5 | 0.285278 | | WT% | XRF |
| MNO | 0.121967 | | WT% | XRF |
| LOI | 3.22 | | WT% | XRF |
| TOTAL | 99.006 | | WT% | XRF |
